package com.at.dao;

import com.at.domain.Blog;
import com.at.domain.Tag;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.data.jpa.repository.JpaSpecificationExecutor;
import org.springframework.data.jpa.repository.Modifying;
import org.springframework.data.jpa.repository.Query;
import org.springframework.stereotype.Repository;

import javax.transaction.Transactional;
import java.util.List;

/**
 * @author : code1997
 * @date :2020-09-2020/9/27 19:01
 */
@Repository
public interface BolgDao extends JpaRepository<Blog,Long>, JpaSpecificationExecutor<Blog> {

    @Query("select b from Blog b where b.recommend=true")
    List<Blog> getTop(Pageable pageable);

    @Query("select b from Blog b where b.title like ?1 or b.content like ?1")
    Page<Blog> findByQuery(String query, Pageable pageable);

    @Transactional
    @Modifying
    @Query("update Blog b set  b.views=b.views+1 where b.id=?1")
    int updateViews(Long id);

    @Query("select function('date_format',b.updateTime,'%Y') as year from Blog b group by year order by year desc")
    List<String> findGroupYear();

    @Query("select b from Blog b where function('date_format',b.updateTime,'%Y')=?1")
    List<Blog> findByYear(String year);



}
